/*****************************************************************************
 * Copyright (C) jparsec.org                                                *
 * ------------------------------------------------------------------------- *
 * Licensed under the Apache License, Version 2.0 (the "License");           *
 * you may not use this file except in compliance with the License.          *
 * You may obtain a copy of the License at                                   *
 *                                                                           *
 * http://www.apache.org/licenses/LICENSE-2.0                                *
 *                                                                           *
 * Unless required by applicable law or agreed to in writing, software       *
 * distributed under the License is distributed on an "AS IS" BASIS,         *
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  *
 * See the License for the specific language governing permissions and       *
 * limitations under the License.                                            *
 *****************************************************************************/
package org.jparsec;

import java.util.Objects;


/**
 */
public class Identifier implements Expr {
  private final String label;

  public Identifier(CharSequence label) {
    this.label = label.toString();
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(label);
  }

  @Override
  public boolean equals(Object obj) {

    if (this == obj) {
      return true;
    }

    if ((obj == null) || (getClass() != obj.getClass())) {
      return false;
    }

    final Identifier other = (Identifier) obj;

    return Objects.equals(this.label, other.label);
  }

  @Override
  public String toString() {
    return "Identifier{" + "label='" + label + '\'' + '}';
  }
}
